SUMIFs for last 7 days
I would like to sum the last 7 days of a column on a daily basis. No matter what day it is, I want to know what the sum of the last 7 days is. I'm using this formula in a summary: =SUMIFS([Workshop Signups]:[Workshop Signups], Day:Day, TODAY(-7)).
When I verified (tested) the numbers, it totals the last 6 days, including today. If I change the 7, the sum does not change until I put in a -10. At that point the sum of the last 7 days is correct. I tested this by putting different numbers in the column for 10 days.
Am I doing something wrong or can someone explain how the TODAY function works with negative numbers?
Thank you for your help!
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